Name: C20 Spiral Staircase
SKU: 26851
Availability: InStock

C20 Spiral Staircase

C20 Spiral Staircase

5-7 weeks delivery

Prices include VAT and UK mainland delivery

Price range: £1,834.00 through £4,404.00

The C20 Spiral Staircase is a bespoke kit staircase tailored to your order. Designed as a spiral for secondary domestic use, it’s ideal for loft conversions and mezzanine access. The staircase features brushed timber treads, vertical steel spindles, and a nylon handrail. With four steelwork finishes and timber options available, you’re sure to find a match for your interior design. Offered in various diameters and heights, the spiral staircase comes with comprehensive instructions for assembly.

Floor to Floor Height

Diameter

Steelwork Finish

Timber Finish

Riser Bars

Landing Balustrade

Clear

SKU: N/A Categories: C20 Spiral Stair, Timber Spiral Staircase, wood spiral stair

Need some assistance? Speak to the spiral experts 01794 522444

Technical Information

Application	Internal Use
Heights	2100-3500mm (for others please contact office)
Diameters	1100mm, 1200mm, 1300mm, 1400mm, 1500mm, 1600mm
Treads	40mm Beechwood
Spindles	20mm diameter steel
Handrail	42mm diameter Nylon
Top Platform	60 degree Triangle
Finish of Steelwork	Powder Coated – White, Light Grey, Grey or Black
Finish of Timber	Oak Stain, Walnut Stain, Stone Stain, Wenge Stain

Steel & Timber Finishes

Building Regulations - Please read and understand before purchase

It is important to check the suitability of your chosen spiral with your local building control department before purchasing. Their requirements will vary depending on the use of the spiral and it’s setting. It is our clients responsibly to ensure the relevant permissions have been sought and granted prior to making any purchase.
We are happy to answer any questions you might have before your purchase but it is your building control officer that will have the final say. We are on 01794 522444

Balustrade for Landing

If you require additional balustrade to protect your opening upstairs, this is available in 1m lengths that can be cut, joined and adjusted to suit. If you have a circular opening the nylon handrail can be curved on site.

An individual kit consists of;-

9 x 20mm diameter Steel spindles
1m length of handrail to match stair
1 x floor support post
1 x handrail to handrail connecting piece
1 x spindle to spindle connector
1 x spindle to wall connector

close up visual of timber handrail and steel spindle on the C20-kit spiral stair

support steel post and wall brackets for a C290 spiral stair

Riser infill Bars

Riser bars are available to reduce the gap between the steps.

In the UK the regulations require a gap of no larger than 100mm between the treads. This is a safety rule to prevent young children sliding through the gap.

These riser bars are formed with a 20mm steel bar which is fitted horizontally between the steps which keep the riser open whilst reducing the gap.

These riser bars are finished (if wished) in the same powder coated colour as the rest of the steelwork.

The riser bars can be added to the order above by simply selecting YES on the riser bar drop down.

If you are unsure if you require them, please check with your building control officer.

These can be fitted retrospectively once the stair is assembled but should they are ordered separately, a further delivery charge would be due.

C20-Spiral-Stair-Riser-Bar- with white back ground

drawing of riser bar on the C20 spiral stair

C20 Spiral Staircase Rotations

Circular Opening

visual showing the square floor opening for the F20 spiral stair

Square Opening

Mezzanine

10 Risers

Clockwise & Anticlockwise

11 Risers

Clockwise & Anticlockwise

12 Risers

Clockwise & Anticlockwise

13 Risers

Clockwise & Anticlockwise

14 Risers

Clockwise & Anticlockwise

15 Risers

Clockwise & Anticlockwise

16 Risers

Clockwise & Anticlockwise

Delivery Info

The C20 Spiral Staircase is considered a custom made order and it is dispatched directly from the factory in Italy and delivered to your door.

Delivery times are generally between 4 and 6 weeks from order but this can increase over summer and Christmas periods.

As this is a custom made product we are not able to accept cancelations.

When the staircase arrives in the UK, the transport company will call you directly to arrange a suitable day for delivery. This is a ‘kerbside’ delivery with most vehicles equipped with a tail-lift and pump truck so the pallet can be wheeled to a safe location across even terrain. A signature will be required to accept the goods and confirm they have arrived in good condition. The delivery company generally delivers between 8am and 5pm during the week.

Delivery is included to mainland UK destinations.

For Northern Ireland, the Channel Islands, Scottish Isles and Isle of Wight and Isle of Man, please call the office for a door to door shipping cost.

01794 522444 info@completestairsystems.co.uk

Frequently asked Questions

What Size of opening do I need in the floor?

The hole in the upper floor should be at least 50mm larger than the spiral diameter you are buying. This is to allow for a knuckle gap clearance as you ascend the spiral. The opening in the floor can be circular or square. For example, a 1500mm diameter spiral would need a 1550mm diameter or 1550 x 1550mm square minimum hole size.

How long does delivery take?

The C20 Spiral is made to order and produced in Italy. It generally takes 4-6 weeks to received your spiral.

What Diameter do I need?

Your requirement will vary depending on the application, the opening you have in the floor above and the building regulations. If you have building control officer involved with the work you are doing, please check what diameter they would be happy with as they are signing off the work. Generally, higher traffic areas would require a larger diameter and low traffic areas would have a smaller diameter.

How difficult is the spiral to install?

In the majority of instances, the spiral is installed in a day by 2 people. This of course will depend on the competency of the individuals and the height of the stair and the amount of landing balustrade. Some customers opt to employ a builder or carpenter whist more experienced DIYers tackle it themselves.

Where does the spiral start and finish?

The entry and exit points of the spiral are a crucial element to consider. If you have a look at the above plan drawings you will be able to see where you get on and get off the spiral. Each model can be assembled clockwise or anticlockwise. If in doubt – please get in touch – 01794 522444.